Monoamnióticos

Monoamnióticos refers to a rare and complex type of twinning in humans, where two embryos develop from a single fertilized egg. This condition is also known as monochorionic-monoamniotic (MCMA) twinning. The term "monoamnióticos" is used in some Latin American countries to describe this phenomenon.

In the development of monoamnióticos, a single fertilized egg splits and forms two separate embryos, which then share the same placenta and amniotic sac. This shared space creates several medical complications, including increased risk of miscarriage, premature birth, and entanglement of the fetuses. The latter is a major concern, as the umbilical cords can become entangled, cutting off vital blood supply to one or both babies.

The chances of having monoamnióticos are estimated to be around 1 in 35,000 to 1 in 80,000 pregnancies. This condition is not influenced by any specific genetic or environmental factors. However, women carrying monoamnióticos are more likely to experience complications during pregnancy, such as preterm labor and placental abruption.

Monochorionic twins, of which monoamnióticos are a subset, are also at a higher risk of twin-to-twin transfusion syndrome (TTTS), a condition where one twin receives more blood and oxygen than the other. Medical professionals closely monitor pregnancies with monoamnióticos to detect any signs of potential complications and provide appropriate treatment.

Monoamnióticos twins can be delivered by cesarean section to minimize the risk of complications, especially if they are premature. In cases where complications cannot be managed, an elected cesarean delivery may be considered to ensure the best possible outcome for both babies.